Inverted papilloma and squamous carcinoma. An unusual case.
D002294:Carcinoma, Squamous Cell / Q000209:etiology / Q000473:pathology*; D006801:Humans; D008297:Male; D008443:Maxillary Sinus; D008875:Middle Aged; D009669:Nose Neoplasms / Q000473:pathology*; D010212:Papilloma / Q000150:complications / Q000473:pathology*; D010255:Paranasal Sinus Neoplasms / Q000473:pathology*